# Fuel Types

The Oxy's chest is a critical part because it is where most of the chips are and where the power core is located. When you solidify an Oxy, depending on the type of solder, it will come loaded with its respective fuel tank.

Once the tank is empty you will have to choose between one type or the other:

### Cronade tank:

Filling the core with this fuel will result in a load capacity of 20 energy. This tank will have a fuel capacity of 200 full charges.

### OxyGem Battery:

&#x20;Refilling the core of this fuel will result in a charge capacity of 30 of energy. This battery will have a fuel capacity of 200 full charges.
